The Valjoux 72 isn’t just a chronograph movement—it’s the soul of mid-century watchmaking. From Rolex to Heuer, Universal to Breitling, this manual-wind column-wheel caliber powered icons of the golden era. Reliable, tactile, and full of character, the Valjoux 72 defined how a chronograph should feel—and why collectors still chase that unmistakable click today.